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Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] |  |  |  |
Income tax at U.S. statutory rate; 21% | $ 16.5 | $ 34.3 | $ 33.2 |
Effect of the U.S. Tax Act | 0.0 | 0.0 | 3.1 |
Impact on final GILTI regulations for 2018 and 2019 | (2.7) | 0.0 | 0.0 |
Statutory tax rate changes | (2.0) | 0.0 | 3.9 |
State, local and other tax, net of federal benefit | 0.1 | 5.8 | 2.2 |
Impact from foreign inclusions | 1.3 | 3.1 | 3.7 |
U.S. effect of foreign dividends and withholding taxes | 1.0 | 2.1 | 2.2 |
Foreign income taxed at a higher effective rate | 1.4 | 4.2 | 0.9 |
Net Brazilian Tax Assessments impact | 1.5 | 6.5 | (4.4) |
Increase in valuation allowance | 2.2 | 0.4 | 5.2 |
Excess expense (benefit) from stock-based compensation | 0.9 | 0.2 | (2.5) |
Other | (3.6) | 0.1 | 3.7 |
Income tax expense | $ 16.6 | $ 56.7 | $ 51.2 | $ 24.0
Effective income tax rate | 21.10% | 34.70% | 32.40% |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the deduction related to excess tax benefits from share based compensation + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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